package com.zyt.filter;

import jakarta.servlet.*;
import jakarta.servlet.annotation.WebFilter;
import lombok.extern.slf4j.Slf4j;

import java.io.IOException;
@Slf4j
//@WebFilter(urlPatterns = "/emps/*")//拦截所有请求
public class DeomFilter implements Filter {
    //初始化方法,web服务器启动的时候执行,只执行一次
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        log.info(" init 初始化方法......");
        Filter.super.init(filterConfig);
    }

    //拦截到请求之后,会执行此方法,会执行多次
    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        log.info(" doFilter 拦截到请求......");
        //放行
        filterChain.doFilter(servletRequest,servletResponse);
    }


    //销毁方法,web服务器关闭的时候执行,只执行一次
    @Override
    public void destroy() {
        log.info(" destroy 销毁方法......");
        Filter.super.destroy();
    }
}
